DOI: 10.1143/jjap.39.l949. Room Temperature Ferromagnetism in Novel Diluted Magnetic Semiconductor Cd1-xMnxGeP2

Room Temperature Ferromagnetism in Novel Diluted Magnetic Semiconductor Cd1-xMnxGeP2

10.1143/jjap.39.l949

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

High concentration of Mn atoms has been incorporated in the surface region of II-IV-V2 type chalcopyrite semiconductor CdGeP2. Photoluminescence spectrum at 20 K shows a peak around 3.2 eV, suggesting that the incorporation of Mn introduces an energy gap much higher than that of the host semiconductor (E g=1.83 eV). Prominent magnetic hysteresis loops with coercivity of 0.5 kOe has been observed at room temperature. Magnetic force microscope (MFM) measurements reveal a stripe-shaped domain pattern on the top surface. Magneto-optical Kerr ellipticity spectrum measured at room temperature show a prominent peak at 1.7 eV and a broad tail up to 3.5 eV. We tentatively attribute the ferromagnetism to the double exchange interaction between Mn2+ and Mn3+ states due to the structural feature of II-IV-V2 type chalcopyrite compounds.

Bibliography

A. Medvedkin, G., Takayuki Ishibashi, T. I., Takao Nishi, T. N., Koji Hayata, K. H., Yoichi Hasegawa, Y. H., & Katsuaki Sato, K. S. (2000). Room Temperature Ferromagnetism in Novel Diluted Magnetic Semiconductor Cd1-xMnxGeP2. Japanese Journal of Applied Physics, 39(10A), L949.

Authors 6

Gennadiy A. Medvedkin (first)
Takayuki Ishibashi Takayuki Ishibashi (additional)
Takao Nishi Takao Nishi (additional)
Koji Hayata Koji Hayata (additional)
Yoichi Hasegawa Yoichi Hasegawa (additional)
Katsuaki Sato Katsuaki Sato (additional)

References 8 Referenced 350

10.1103/RevModPhys.40.684 / Rev. Mod. Phys. (1968)
{'year': '1982', 'key': ''} (1982)
10.1063/1.341700 / J. Appl. Phys. (1988)
10.1049/el:19941327 / J. Electron Lett. (1994)
10.1016/S0304-8853(99)00444-8 / J. Magn. & Magn. Mater. (1999)
10.1143/JJAP.39.L555 / Jpn. J. Appl. Phys. (2000)
10.1143/JJAP.38.L166 / Jpn. J. Appl. Phys. (1999)
{'key': ''}

Dates

Type	When
Created	22 years, 10 months ago (Oct. 1, 2002, 4:30 p.m.)
Deposited	2 years, 8 months ago (Dec. 19, 2022, 1:06 p.m.)
Indexed	4 weeks, 2 days ago (July 27, 2025, 3:34 a.m.)
Issued	24 years, 10 months ago (Oct. 1, 2000)
Published	24 years, 10 months ago (Oct. 1, 2000)
Published Print	24 years, 10 months ago (Oct. 1, 2000)

Funders 0

None

BibTeX

@article{A_Medvedkin_2000, title={Room Temperature Ferromagnetism in Novel Diluted Magnetic Semiconductor Cd1-xMnxGeP2}, volume={39}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.39.l949}, DOI={10.1143/jjap.39.l949}, number={10A}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={A. Medvedkin, Gennadiy and Takayuki Ishibashi, Takayuki Ishibashi and Takao Nishi, Takao Nishi and Koji Hayata, Koji Hayata and Yoichi Hasegawa, Yoichi Hasegawa and Katsuaki Sato, Katsuaki Sato}, year={2000}, month=oct, pages={L949} }

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